A Study of Redistribution of Silicon in Dual-Phase Silicon Steels

Dual-phase steels containing 0.34 – 2.26 wt.% Si are studied after quenching from the intercritical temperature range. The critical temperatures Ac1 and Ac3 of the steels are determined. The effect of silicon and of the time of holding at 740 – 810°C on the volume fraction of austenite and on the coefficient of silicon distribution between austenite and ferrite is considered.